| Ettevõtte nimi | Reg. kood |
|---|---|
| WELDOG OÜ | 14643204 |
| WELDON OÜ kustutatud (endine nimi Mushroom Army OÜ) | 11508397 |
| WELDO OÜ kustutatud | 16592698 |
| WELDON HALDUSTEENUSED OÜ (endine nimi Aablu Keskus OÜ) | 12182319 |
| WELDON EHITUS OÜ (endine nimi Building Systems OÜ) | 11418553 |
| KEMOX TEENINDUS OÜ kustutatud (endine nimi OÜ WELDON MANAGEMENT) | 10938865 |
| BK4-ROYAL RENTAL OÜ kustutatud (endine nimi Weldor Menter OÜ) | 12158870 |
| WELDIT OÜ | 12673230 |
| WELDING OÜ | 12087791 |
| WELTON OÜ (endine nimi Rich Group OÜ) | 11366170 |
| WELDUP OÜ | 12270785 |
| WELDME OÜ | 14086560 |
| WELDBOR OÜ | 16735092 |
| WELDCOM OÜ | 11698682 |
| WELDER OÜ | 17308015 |
| WELCON OÜ | 16140714 |
| WELBORG OÜ | 14665855 |
| WELDFOX OÜ | 16247085 |
| WELDIO OÜ kustutatud | 12869921 |
| WELKOM OÜ | 17533798 |
| WELDER OÜ kustutatud | 10336480 |
| WELDKON OÜ kustutatud | 14812121 |
| WELD WELDING WORLD.EE OÜ | 16075448 |
| WELDING WORKS OÜ (endine nimi Luger OÜ) | 14811736 |
| GSV WELDING OÜ | 11381206 |
| SAL WELDING OÜ | 16088072 |
| WELING REISID OÜ | 11522240 |
| SSK WELDING OÜ | 14330161 |
| TP WELDING OÜ (endine nimi OpenWeb OÜ) | 11898671 |
| WELTON ENTERPRISES OÜ | 11483792 |
| WELDES EHITUS OÜ | 11049021 |
| TEBA WELDING OÜ | 14909719 |
| KOLESNICHENKO WELDING OÜ | 17575791 |
| KOMI WELDING OÜ | 17408509 |
| WELDING GROUP OÜ (endine nimi Osaühing Welding Grupp) | 10577522 |
| ALP WELDING OÜ | 12844826 |
| WELDING VISION OÜ | 12947710 |
| LT WELDING OÜ | 14768348 |
| PROCESS WELDING OÜ | 12995363 |
| 6G WELDING OÜ | 17368632 |
| RL WELDING OÜ | 14841720 |
| MKE WELDING OÜ | 17086276 |
| BA WELDING OÜ | 16318632 |
| 3K WELDING OÜ | 17520034 |
| FINEST WELDING OÜ | 11521953 |
| DRITA WELDING OÜ | 17487503 |
| MEH WELDING OÜ | 12927771 |
| KN-WELDING OÜ | 17022715 |
| WELDING CONSTRUCTIONS OÜ (endine nimi OÜ KURILANE) | 10233596 |
| ESTFIN WELDING OÜ | 14534490 |